Guohao air fyuluta 17801-21060 imayang'ana kwambiri pakupulumutsa mphamvu komanso kuteteza chilengedwe pazogulitsa zake. Amagwiritsa ntchito mapangidwe otsika komanso zosefera kuti achepetse kukana kwa injini, kuwongolera kudya bwino, motero amachepetsa kugwiritsa ntchito mafuta komanso kutulutsa mpweya.